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Stock-Based Compensation (PSUs, RSUs and Restricted Stock) - Additional Information (Detail) - USD ($)
shares in Millions, $ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2021
Performance Stock Units (PSUs) [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Vesting period     3 years
Share issued 0.6 0.6  
Performance target period 3 years 3 years  
Performance Stock Units (PSUs) [Member] | Minimum [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Percentage of performance stock units granted 0.00% 0.00% 0.00%
Performance Stock Units (PSUs) [Member] | Maximum [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Percentage of performance stock units granted 142.80% 142.80% 150.00%
PSUs, RSUs and Restricted Stock [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Vesting period     4 years
Restricted Stock [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Vesting period     1 year
Market-Based PSUs, RSUs and Restricted Stock [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Unrecognized compensation expense related to other than options     $ 17.5
Recognition period of non-vested compensation cost     2 years 10 months 24 days
Stock Options, PSUs, RSUs or Restricted Stock [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Options available for issuance under shareholders-approved equity plan     3.8